????,??????????????,??????????????????

???????????????????????!????????????????????????????????????????????????????????(fu)????????????????????(fu)???????!

????????????10?ο???????????????????????????????????????????????????????????????ú??????????????ò??????????????????????!

PS??????????1000????2000????????200+200=400????????10??????????????????2000-400=1600???????????

?????!!!???????!???????!???????!??????????????!???????????????700??800??900????????????????????“????”???????????????500?????????????????b??????!???????!?????????????????Χ?????????????????????????????????￡?

???????????????300????????????200????????Ρ?

????????????(????????ζ??????????????????Щ?????????????????Щ????????????)

10???飬????????????????????????

10????????291+274+205+174+180+191+180+141+216+233=2085???????1??=210????????

10?????????310+310+305+350+310+300+295+330+345+305=3160?????1??=316??????????

10?????????320+330+340+310+350+280+345+315+325+310=3225?????1??=322?????????

???????????10???????????????д???

????????40407???????

40407?????????? 

 PS???????????????????????????????????????????????????????!